EP4207800A3 - Loudspeaker assembly with a waveguide - Google Patents

Loudspeaker assembly with a waveguide Download PDF

Info

Publication number
EP4207800A3
EP4207800A3 EP22217155.5A EP22217155A EP4207800A3 EP 4207800 A3 EP4207800 A3 EP 4207800A3 EP 22217155 A EP22217155 A EP 22217155A EP 4207800 A3 EP4207800 A3 EP 4207800A3
Authority
EP
European Patent Office
Prior art keywords
waveguide
loudspeaker assembly
loudspeaker
diaphragm
audio output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22217155.5A
Other languages
German (de)
French (fr)
Other versions
EP4207800A2 (en
Inventor
Rishi Daftuar
David Mossington
Matthew Christopher Marrocco
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harman International Industries Inc
Original Assignee
Harman International Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harman International Industries Inc filed Critical Harman International Industries Inc
Publication of EP4207800A2 publication Critical patent/EP4207800A2/en
Publication of EP4207800A3 publication Critical patent/EP4207800A3/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/023—Screens for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
    • H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles

Abstract

In at least one embodiment, a loudspeaker assembly is provided. The loudspeaker assembly includes a loudspeaker and a waveguide. The loudspeaker includes a diaphragm to transmit an audio output. The waveguide being asymmetrical and at least partially surrounding the diaphragm. The waveguide being configured to control a directivity of the audio output.
EP22217155.5A 2022-01-03 2022-12-29 Loudspeaker assembly with a waveguide Pending EP4207800A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263296040P 2022-01-03 2022-01-03
US18/090,185 US20230217160A1 (en) 2022-01-03 2022-12-28 Loudspeaker assembly with a waveguide

Publications (2)

Publication Number Publication Date
EP4207800A2 EP4207800A2 (en) 2023-07-05
EP4207800A3 true EP4207800A3 (en) 2023-10-11

Family

ID=86558929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22217155.5A Pending EP4207800A3 (en) 2022-01-03 2022-12-29 Loudspeaker assembly with a waveguide

Country Status (3)

Country Link
US (1) US20230217160A1 (en)
EP (1) EP4207800A3 (en)
CN (1) CN116389987A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024054760A1 (en) * 2022-09-08 2024-03-14 Dolby Laboratories Licensing Corporation Tilted slot waveguide

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0358699A (en) * 1989-07-27 1991-03-13 Matsushita Electric Ind Co Ltd On-vehicle speaker equipment
JPH03192900A (en) * 1989-12-21 1991-08-22 Matsushita Electric Ind Co Ltd On-vehicle speaker equipment
US20150365758A1 (en) * 2014-06-16 2015-12-17 PK Event Services Inc. Audio Wave Guide
CN205829991U (en) * 2016-07-25 2016-12-21 广东欧珀移动通信有限公司 A kind of sound box mesh cover goes out sound structure, sound box mesh cover and audio amplifier
US20170048610A1 (en) * 2014-04-23 2017-02-16 Martin Audio Limited Coaxial loudspeaker apparatus
US20210256955A1 (en) * 2018-07-04 2021-08-19 Pss Belgium Nv Waveguide assembly
US20210368260A1 (en) * 2020-05-25 2021-11-25 Sagemcom Broadband Sas Acoustic horn for a generic loudspeaker enclosure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0358699A (en) * 1989-07-27 1991-03-13 Matsushita Electric Ind Co Ltd On-vehicle speaker equipment
JPH03192900A (en) * 1989-12-21 1991-08-22 Matsushita Electric Ind Co Ltd On-vehicle speaker equipment
US20170048610A1 (en) * 2014-04-23 2017-02-16 Martin Audio Limited Coaxial loudspeaker apparatus
US20150365758A1 (en) * 2014-06-16 2015-12-17 PK Event Services Inc. Audio Wave Guide
CN205829991U (en) * 2016-07-25 2016-12-21 广东欧珀移动通信有限公司 A kind of sound box mesh cover goes out sound structure, sound box mesh cover and audio amplifier
US20210256955A1 (en) * 2018-07-04 2021-08-19 Pss Belgium Nv Waveguide assembly
US20210368260A1 (en) * 2020-05-25 2021-11-25 Sagemcom Broadband Sas Acoustic horn for a generic loudspeaker enclosure

Also Published As

Publication number Publication date
CN116389987A (en) 2023-07-04
US20230217160A1 (en) 2023-07-06
EP4207800A2 (en) 2023-07-05

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